CN114198443A

CN114198443A - Buffer element and electronic device with same

Info

Publication number: CN114198443A
Application number: CN202011201615.2A
Authority: CN
Inventors: 高政森; 丁元翔; 陈俊为
Original assignee: Wiwynn Corp
Current assignee: Wiwynn Corp
Priority date: 2020-09-18
Filing date: 2020-11-02
Publication date: 2022-03-18
Also published as: TWI756834B; US11470732B2; US20220095465A1; TW202214068A

Abstract

The invention discloses a buffer element, which comprises an annular elastic body, a plurality of first cylinders and a plurality of second cylinders. The annular elastic body comprises a first side wall and a second side wall which are opposite to each other, the first side wall comprises a first inner surface, and the second side wall comprises a second inner surface. The first columns are arranged on the first inner surface and extend towards the second inner surface, each first column comprises a first extending end and a first side surface, and a first distance is reserved between the first extending end and the second inner surface. The plurality of second cylinders are arranged on the second inner surface and extend towards the first inner surface, each second cylinder comprises a second extending end and a second side surface, a second distance is formed between the second extending end and the first inner surface, and at least one part of the second side surface is in contact with at least one part of the first side surface.

Description

Buffer element and electronic device with same

Technical Field

The present invention relates to a buffer element, and more particularly, to a buffer element with a pillar for improving buffering effect and an electronic device having the same.

Background

Many products are protected by cushioning elements, such as cushioning elements that are used to cushion the product from external impact forces, to cushion forces between internal components of the product, or to absorb shock from the operation of the components.

At present, the buffering component commonly used on the market is mostly solid rubber block or foam, however, when the solid rubber block is impacted by the object, the impact energy can not be effectively absorbed and overlarge resilience reaction force can be generated, the acceleration value that leads to the object atress to kick back is too high, therefore, when the object rebounds and strikes other components, self or other components are easily caused to damage or deform. The foam is easy to wear during use and lose the buffering effect.

Disclosure of Invention

In view of the above, in some embodiments, the present invention provides a buffer element, which includes an annular elastic body, a plurality of first columns and a plurality of second columns. The annular elastic body comprises a first side wall and a second side wall which are opposite to each other, the first side wall comprises a first inner surface, and the second side wall comprises a second inner surface. The first columns are arranged on the first inner surface and extend towards the second inner surface, each first column comprises a first extending end and a first side surface, and a first distance is reserved between the first extending end and the second inner surface. The plurality of second cylinders are arranged on the second inner surface and extend towards the first inner surface, each second cylinder comprises a second extending end and a second side surface, a second distance is formed between the second extending end and the first inner surface, and at least one part of the second side surface is in contact with at least one part of the first side surface.

In another embodiment, the present invention provides an electronic device including a housing, a circuit board and a buffer element. The casing is provided with a connecting part inside. The circuit board is assembled in the shell and comprises a side edge adjacent to the connecting part. The buffer element is arranged between the side edge of the circuit board and the connecting part and comprises an annular elastic body, a plurality of first cylinders and a plurality of second cylinders, wherein the annular elastic body comprises a first side wall and a second side wall which are opposite to each other, the first side wall comprises a first inner surface, the second side wall comprises a second inner surface, the first side wall is in contact with the side edge, and the second side wall is fixed on the connecting part. The first columns are arranged on the first inner surface and extend towards the second inner surface, each first column comprises a first extending end and a first side surface, and a first distance is reserved between the first extending end and the second inner surface. The plurality of second cylinders are arranged on the second inner surface and extend towards the first inner surface, each second cylinder comprises a second extending end and a second side surface, a second distance is formed between the second extending end and the first inner surface, and at least one part of the second side surface is in contact with at least one part of the first side surface.

In summary, according to the buffering element of the embodiment of the invention, the annular elastic body is hollow, and the first side surface of each first cylinder and the second side surface of each second cylinder are at least partially contacted with each other, so that when the buffering element is compressed by an object impact, a damping effect can be generated by the deformation amount of the annular elastic body and the mutual friction between the first cylinder and the second cylinder, thereby effectively absorbing impact force and greatly reducing rebound reaction force, so as to reduce the rebound acceleration value of the object, thereby preventing the object from rebounding and impacting other elements to damage or deform itself or other elements, and preventing the buffering element from being easily worn to increase the service life.

Drawings

FIG. 1 is a perspective view of a first embodiment of a cushioning element according to the present invention;

FIG. 2 is a side view of a first embodiment of a cushioning element according to the present invention;

FIG. 3 is an enlarged partial view of a first embodiment of a cushioning element according to the present invention;

FIG. 4 is an exploded perspective view of a second embodiment of a cushioning element according to the present invention;

FIG. 5 is an enlarged, fragmentary view of a third embodiment of a cushioning element according to the present invention;

FIG. 6 is an enlarged, fragmentary view of a fourth embodiment of a cushioning element according to the present invention;

FIG. 7 is an enlarged fragmentary view of a fifth embodiment of a cushioning element according to the present invention;

FIG. 8 is an enlarged, fragmentary view of a sixth embodiment of a cushioning element according to the present invention;

FIG. 9 is an exploded perspective view of an electronic device according to an embodiment of the invention;

FIG. 10 is a plan view of an electronic device according to an embodiment of the invention;

FIG. 11 is a partially enlarged perspective view of an electronic device according to an embodiment of the invention;

FIG. 12 is an enlarged, partial plan view of an electronic device in accordance with an embodiment of the present invention;

FIG. 13 is a schematic view of the impact of FIG. 12;

FIG. 14 is another enlarged partial plan view of an electronic device according to an embodiment of the invention.

Description of the symbols

1 buffer element

10,10 a-ring-shaped elastomer

11,11a first side wall

111,111a first inner surface

12,12a second side wall

121,121a second inner surface

13 third side wall

Fourth side wall 14

15 the first opening side

16 the second opening side

20,20a first cylinder

21 first extension end

22 first side face

23,23a,23b protrusions

231a,231b first inclined plane

232a,232b second inclined plane

Line 24: line

25 first base material

26 second base material

S1 first spacing

30, 30', 30a second cylinder

301 notch

31 second extension end

32 second side surface

33,33a,33b, concave part

S2 second distance

40 electronic device

41 casing

411 second stopper

412, catching groove

42 connecting part

43 assembling port

44, a slot

45: circuit board

451: side edge

452 first stop

453, a fastening part

46: connector

47 power supply board

A, B, C are regions

L is an arrow

Detailed Description

Fig. 1 is a perspective view, fig. 2 is a side view, and fig. 3 is a partially enlarged view of a first embodiment of a cushioning element according to the present invention. As shown in fig. 1 to 3, the damping element 1 includes an annular elastic body 10, a first column 20 and a second column 30, wherein the first column 20 and the second column 30 in fig. 3 are filled with different filling lines respectively to clearly separate the boundaries of the two columns (the same applies to fig. 5 to 8).

In some embodiments, the cushioning element 1 can be applied to various products to relieve the products from external impact, to relieve the acting force between the internal components of the products, or to absorb the shock generated by the operation of the components. For example, the product may be an electronic product (such as a server, a computer, a household appliance, an automobile or other consumer electronic product, etc.) or a mechanical product (such as a processing machine, a conveyor or a packaging machine, etc.), or the cushioning element 1 may also be a packaging material of the product.

As shown in fig. 1 and 2, the annular elastic body 10 can be made of an elastic material, such as a thermosetting elastomer (Rubber) or a Thermoplastic elastomer (TPE), which refers to the ability of the material to deform when subjected to an external force and to recover from the external force when removed. In some embodiments, the annular elastic body 10 is in a hollow annular shape, and the shape of the annular elastic body 10 may be square, rectangular, oval, circular or other irregular shapes, which is not limited.

As shown in fig. 1 and 2, in the present embodiment, the annular elastic body 10 is rectangular and includes a first sidewall 11 and a second sidewall 12 opposite to each other and a third sidewall 13 and a fourth sidewall 14 opposite to each other, the third sidewall 13 and the fourth sidewall 14 are connected between the first sidewall 11 and the second sidewall 12, so that the first sidewall 11, the second sidewall 12, the third sidewall 13 and the fourth sidewall 14 surround to form the hollow annular elastic body 10, and the annular elastic body 10 forms a first opening side 15 and a second opening side 16 opposite to each other and not closed.

As shown in fig. 1 to 3, the first sidewall 11 of the annular elastic body 10 includes a first inner surface 111, the second sidewall 12 includes a second inner surface 121, and the first inner surface 111 and the second inner surface 121 have a gap therebetween. The number of the first columns 20 of the buffering element 1 is plural and is disposed on the first inner surface 111 of the first sidewall 11, for example, in the embodiment, the plural first columns 20 are disposed on the first inner surface 111 at intervals (here, the plural first columns 20 are arranged in a row), each first column 20 extends toward the second inner surface 121, and each first column 20 includes a first extending end 21 and at least one first side surface 22, where the first extending end 21 is an end of the first column 20 away from the first inner surface 111, the first side surface 22 is a side surface of the first column 20 between the first extending end 21 and the first inner surface 111, and the first extending end 21 and the second inner surface 121 have a first distance S1 therebetween and are not in contact with each other.

In some embodiments, each first column 20 can be a square column, a circular column, an oval column, a long bar column, or other shaped column. The number of the first side surfaces 22 depends on the shape of the first column 20, for example, if the first column 20 is a square column or a long column, the number of the first side surfaces 22 is plural, and if the first column 20 is a circular column or an oval column, the number of the first side surfaces 22 is one and has a ring-shaped surface.

In some embodiments, the first cylinder 20 and the annular elastic body 10 can be an integral structure (see fig. 1 and 2) or an assembled structure (see fig. 4). For example, in the manufacturing process of the cushioning element 1, a solid elastomer (e.g., a solid rubber body) may be cut by machining to be integrally manufactured to form the annular elastic body 10 and each first cylinder 20. Alternatively, the annular elastic body 10 and the first column 20 may be manufactured separately, and then the plurality of first columns 20 are assembled inside the annular elastic body 10 and fixed on the first inner surface 111.

In some embodiments, the shape or size (e.g., length or width) of the plurality of first columns 20 may be all the same, all different, or partially the same, depending on the product to which cushioning element 1 is applied. For example, in the embodiment of fig. 1-3, the first plurality of columns 20 are identical in shape and size.

As shown in fig. 1 to fig. 3, the number of the second pillars 30 of the buffering element 1 may also be multiple and disposed on the second inner surface 121, for example, in the embodiment, the multiple second pillars 30 are disposed on the second inner surface 121 at intervals (where, the multiple second pillars 30 are arranged in a row), the multiple second pillars 30 and the multiple first pillars 20 are disposed alternately, each second pillar 30 extends toward the first inner surface 111, and each second pillar 30 includes a second extending end 31 and at least one second side surface 32, wherein the second extending end 31 is an end of the second pillar 30 away from the second inner surface 121, the second side surface 32 is a side surface of the second pillar 30 between the second extending end 31 and the second inner surface 121, and the second extending end 31 and the first inner surface 111 have a second distance S2 therebetween without contacting each other. Thus, by having the first distance S1 between the first extending end 21 and the second inner surface 121 of each first column 20 and the second distance S2 between the second extending end 31 and the first inner surface 111 of each second column 30, when the first sidewall 11 is impacted by an external force, the first sidewall 11 and each first column 20 can move close to each other toward the second inner surface 121 to compress the annular elastic body 10, and if the external force is large, each first column 20 may contact the second inner surface 121 to make the first distance S1 become 0; when the second sidewall 12 is impacted by the external force, the second sidewall 12 and each second column 30 can move close to the first inner surface 111 to compress the annular elastic body 10, and if the external force is large, each second column 30 may contact the first inner surface 111 to make the second distance S2 equal to 0.

In some embodiments, each second post 30 may be a square post, a circular post, an oval post, a long bar post, or other shaped post. The number of the second side surfaces 32 depends on the shape of the second column 30, for example, if the second column 30 is a square column or an elongated column, the number of the second side surfaces 32 is plural, and if the second column 30 is a circular column or an elliptical column, the number of the second side surfaces 32 is one and has an annular surface.

In some embodiments, the second post 30 and the annular elastic body 10 can be an integral structure (see fig. 1 and 2) or an assembled structure (see fig. 4). For example, in the manufacturing process of the cushioning element 1, a solid elastic body (e.g., a solid rubber body) may be cut by machining to form the annular elastic body 10 and the second column 30 integrally, or the annular elastic body 10 and the second column 30 may be manufactured separately, and then the second column 30 is assembled inside the annular elastic body 10 and fixed on the second inner surface 121.

In some embodiments, the shape or size (e.g., length or width) of the plurality of second posts 30 may be all the same, all different, or partially the same. For example, in the embodiment of fig. 1 to 3, two second pillars 30 'closest to the third sidewall 13 and the fourth sidewall 14 are included in the plurality of second pillars 30, and the shape and size of the second pillars 30' are different from those of the other second pillars 30. In addition, the shapes or dimensions (e.g., lengths or widths) of the first columns 20 and the second columns 30 may be all the same, all different, or partially the same. For example, in the embodiment of fig. 1-3, the first columns 20 and the second columns 30 are all different in size (here, the width of each first column 20 is greater than the width of each second column 30).

As shown in fig. 1 to 3, the first side surface 22 of the first cylinder 20 and the second side surface 32 of the second cylinder 30 adjacent to each other also contact each other. As shown in fig. 3, in the present embodiment, the first side surface 22 of each first column 20 and the second side surface 32 of each second column 30 are both planar and attached to each other. Therefore, when the first sidewall 11 or the second sidewall 12 is impacted by an external object to compress the annular elastic body 10, the first columns 20 and the second columns 30 can move relative to each other, for example, the first columns 20 move close to the second inner surface 121 or the second columns 30 move close to the first inner surface 111, so that the contact parts of the first side surfaces 22 and the second side surfaces 32 rub against each other to generate a damping effect, and in addition, the sidewalls (the first sidewall 11, the second sidewall 12, the third sidewall 13 and the fourth sidewall 14) of the annular elastic body 10 can be simultaneously stressed to generate deformation to enhance the damping effect, so as to effectively absorb impact force and greatly reduce rebound reaction force, thereby reducing rebound acceleration value of the object, and avoiding damage or deformation of the object or other elements due to rebound impact on the object to other elements. In addition, the damping effect is enhanced, so that the cushioning element 1 is less prone to wear and has an increased service life.

For example, under the same impact condition, assuming that the solid rubber block is impacted by an object, the rebound acceleration value of the object is 60g, the impact-absorbing element 1 of the embodiment of the invention can reduce the rebound acceleration value by at least 50% through the deformation amount of the annular elastic body 10 and the mutual friction between the first cylinder 20 and the second cylinder 30, for example, the rebound acceleration value of the object can be reduced to 14 g-30 g after the impact-absorbing element 1 is impacted by the object, so as to prevent the object from rebounding and impacting other elements to damage or deform the object or other elements.

In some embodiments, as shown in fig. 1-3, each first post 20 and each second post 30 may be elongated and extend from the first open side 15 to the second open side 16. Therefore, the contact area between the first side surface 22 of each first column 20 and the second side surface 32 of each second column 30 can be increased, and when the first side wall 11 or the second side wall 12 of the cushioning element 1 is impacted by an external object and compresses the annular elastic body 10, the friction force between each first column 20 and each second column 30 can be increased to increase the damping effect, thereby further reducing the rebound acceleration value of the object.

In some embodiments, the thickness of the annular elastic body 10, the size (e.g., length, width, or height) or number of the first columns 20, or the size (e.g., length, width, or height) or number of the second columns 30 of the impact-attenuating element 1 may affect the damping effect generated when the impact-attenuating element 1 is impacted. Therefore, the size or number of the ring-shaped elastic body 10, the first column 20 or the second column 30 of the cushioning element 1 can be adjusted according to different product specifications (such as product weight, space or size) to achieve an optimal design.

As shown in fig. 1 and fig. 2, two second columns 30' of the second columns 30 of the buffer element 1, which are closest to the third sidewall 13 and the fourth sidewall 14, are further connected to the third sidewall 13 and the fourth sidewall 14, respectively. Therefore, the structural strength of the third side wall 13 and the fourth side wall 14 can be further increased, and the third side wall 13 and the fourth side wall 14 can be ensured to be rebounded and restored after being deformed by force, so that the service life of the buffer element 1 is prolonged. In some embodiments, the overall volume of two second columns 30' may be greater than the overall volume of the other second columns 30 to further enhance the structural strength of the third and

fourth sidewalls

13 and 14.

In some embodiments, as shown in fig. 2, each second column 30 'connected to the third sidewall 13 and the fourth sidewall 14 may further have a notch 301, such that when the third sidewall 13 and the fourth sidewall 14 are deformed by a force, each second column 30' may be deformed synchronously based on the notch 301, so as to enhance the impact force absorption and improve the damping effect, and may help the third sidewall 13 and the fourth sidewall 14 recover to the original shape after the external force is removed.

In some embodiments, the buffering element 1 may also be connected to the third sidewall 13 and the fourth sidewall 14 by two of the first pillars 20 closest to the third sidewall 13 and the fourth sidewall 14, and is not limited to passing through the second pillars 30'.

In some embodiments, the first columns 20 can be two-dimensionally arranged on the first inner surface 111 to form a two-dimensional array, and the second columns 30 can be two-dimensionally arranged on the second inner surface 121 to form a two-dimensional array. As shown in fig. 4, which is an exploded perspective view of a second embodiment of the cushioning element of the present invention, in the present embodiment, the annular elastic body 10a, the first columns 20a and the second columns 30a may be assembled structures, for example, the first columns 20a may be formed by cutting a solid elastic body by machining to form a two-dimensional array on the first base 25, the second columns 30a may be formed by cutting a solid elastic body by machining to form a two-dimensional array on the second base 26, the first base 25 is fixed on the first inner surface 111a of the first sidewall 11a of the annular elastic body 10a to two-dimensionally arrange the first columns 20a on the first inner surface 111a, and the second base 26 is fixed on the second inner surface 121a of the second sidewall 12a of the annular elastic body 10a to two-dimensionally arrange the second columns 30a on the second inner surface 121a, and the plurality of first columns 20a and the plurality of second columns 30a are alternately arranged with each other.

In some embodiments, at least one of the first side surface 22 of the first pillar 20 and the second side surface 32 of the second pillar 30 contacting each other may further be provided with a microstructure to increase the damping effect, wherein the microstructure may be implemented in various ways (as shown in fig. 5 to 8), which are respectively described below with reference to the drawings.

Referring to fig. 5, which is a partial enlarged view of a third embodiment of the buffering element of the present invention, in some embodiments, the first side 22 of the first cylinder 20 may be provided with a texture 24, wherein the texture 24 may be a groove texture (as shown in fig. 5) or a protruding texture. Therefore, when the first sidewall 11 or the second sidewall 12 is impacted by an external object to move the first cylinder 20 and the second cylinder 30 relative to each other, the frictional damping effect can be increased through the grains 24, so as to achieve the purpose of enhancing the impact force absorption and further reducing the rebound acceleration value of the object.

However, the above embodiments are only examples, and in some embodiments, the above-mentioned texture 24 may also be disposed on the second side surface 32 of the second cylinder 30, or both the first side surface 22 of the first cylinder 20 and the second side surface 32 of the second cylinder 30 may also be provided with the texture 24 to increase the friction damping effect.

Referring to fig. 6, which is a partial enlarged view of a fourth embodiment of the cushioning element of the present invention, in some embodiments, a plurality of protrusions 23 are disposed on the first lateral surface 22 of the first pillar 20 and are arranged on the first lateral surface 22 along the extending direction of the first pillar 20, wherein the shape of the protrusions 23 may be, but is not limited to, a semi-circle (as shown in fig. 6), an arc, a square, a rectangle, a trapezoid, or other irregular shape. Thus, when the first cylinder 20 and the second cylinder 30 are moved relative to each other by the first sidewall 11 or the second sidewall 12 being impacted by an external object, a frictional damping effect may be increased by the protrusion 23.

As shown in fig. 6, in some embodiments, the second side surface 32 of the second column 30 may be provided with a plurality of concave portions 33 to match with the convex portions 23, where the plurality of concave portions 33 are arranged on the second side surface 32 along the extending direction of the second column 30, the number of concave portions 33 may be greater than or equal to the number of convex portions 23, and the plurality of convex portions 23 are respectively detachably accommodated in the corresponding concave portions 33. Thus, when the first cylinder 20 and the second cylinder 30 are moved relative to each other by the first sidewall 11 or the second sidewall 12 being impacted by an external object, the frictional damping effect can be further increased by the interference between the convex portion 23 and the concave portion 33.

However, the above embodiments are only examples, and in some embodiments, the convex portion 23 may be disposed on the second side 32 of the second cylinder 30, and the concave portion 33 may be disposed on the first side 22 of the first cylinder 20.

Fig. 7 is an enlarged view of a fifth embodiment of the cushioning element of the present invention. The present embodiment is different from the above-mentioned embodiment of fig. 6 in that the convex portion 23a on the first side surface 22 of the first column 20 is polygonal (herein, has an unequal-waisted trapezoid shape) and includes a first inclined surface 231a and a second inclined surface 232a, the first inclined surface 231a is adjacent to the first inner surface 111 relative to the second inclined surface 232a, wherein the first inclined surface 231a and the second inclined surface 232a are inclined surfaces, and the slope of the first inclined surface 231a is different from the slope of the second inclined surface 232a, and the shape of each concave portion 33a on the second side surface 32 of the second column 30 may correspond to the shape of each convex portion 23 a. For example, as shown in fig. 7, in the present embodiment, the slope of the first inclined surface 231a is greater than the slope of the second inclined surface 232a, so that, since the slope of the second inclined surface 232a is smaller, during the process that the first sidewall 11 is impacted by an external object and the first cylinder 20 moves closer to the second inner surface 121, a greater resistance is generated between the convex portion 23a and the concave portion 33a to increase the damping effect, so as to enhance the impact force absorption and further reduce the rebound reaction force. Further, since the slope of the first slope 231a is large, when the first side wall 11 removes the external force and the annular elastic body 10 is rebounded, the resistance between the convex portion 23a and the concave portion 33a is small, and the annular elastic body 10 can be assisted to rebound.

As shown in fig. 8, which is a partial enlarged view of a sixth embodiment of the buffering element of the present invention, in the present embodiment, the convex portion 23b on the first side surface 22 of the first pillar 20 is polygonal (here, isosceles trapezoid) and includes a first inclined surface 231b and a second inclined surface 232b, the first inclined surface 231b is adjacent to the first inner surface 111 relative to the second inclined surface 232b, wherein the first inclined surface 231b and the second inclined surface 232b are inclined surfaces. This embodiment differs from the embodiment of fig. 7 described above at least in that the slope of the first slope 231b is the same as the slope of the second slope 232b, and the shape of each concave portion 33b on the second side surface 32 of the second cylinder 30 corresponds to the shape of each convex portion 23 b. Therefore, compared to the embodiment of fig. 3, when the first sidewall 11 or the second sidewall 12 is impacted by an external object to move the first cylinder 20 and the second cylinder 30 relative to each other, a resistance force is further generated between the convex portion 23b and the concave portion 33b to increase the damping effect, so as to enhance the impact force absorption and reduce the rebound reaction force.

As shown in fig. 9 to 14, the buffering element 1 of the above embodiment is applied to an electronic device 40. Fig. 9 is an exploded perspective view of an embodiment of an electronic device according to the present invention, fig. 10 is a plan view of the electronic device according to the present invention, fig. 11 is a partially enlarged perspective view of the electronic device according to the present invention, fig. 11 is a partially enlarged view of a region a of fig. 9, and fig. 12 is a partially enlarged plan view of the electronic device according to the present invention, fig. 12 is a partially enlarged view of a region B of fig. 10. As shown in fig. 9 and 10, the electronic device 40 includes a housing 41, a circuit board 45, and the buffering element 1 of the above embodiments. In some embodiments, the electronic device 40 may be a server, a computer, a home appliance, or other electronic products.

As shown in fig. 9 and 10, the electronic device 40 of the present embodiment is a server, but is not limited to the invention. In some embodiments, the Server may be a Blade Server (slotted Server), a Blade Server (Blade Server), or a Rack Server (Rack Server), among others.

As shown in fig. 9 and 10, in some embodiments, the housing 41 of the electronic device 40 has a connecting portion 42 for fixing the buffering element 1, wherein the number of the connecting portion 42 and the buffering element 1 may be one or more, depending on different product requirements, for example, in the present embodiment, the number of the connecting portion 42 and the buffering element 1 is two respectively. In some embodiments, the connecting portion 42 may be a bracket installed inside the chassis 41, or the connecting portion 42 may also be a partial shell of the chassis 41.

As shown in fig. 9 to 12, the number of the circuit boards 45 may be one or more and assembled in the housing 41, and the circuit boards 45 include a side 451 adjacent to the connecting portion 42. In this embodiment, the number of the circuit boards 45 is two, wherein each circuit board 45 is a pluggable circuit board, the housing 41 includes an assembly opening 43 and slots 44, the number of the slots 44 corresponds to the number of the circuit boards 45 and is located between the connecting portion 42 and the assembly opening 43, and each circuit board 45 is inserted into the corresponding slot 44 through the assembly opening 43.

As shown in fig. 9 to 12, in some embodiments, after the circuit board 45 is inserted into the slot 44 of the housing 41, the circuit board 45 may be electrically connected to other components in the housing 41 through the connector 46, for example, in the present embodiment, a power supply board 47 is disposed on a side of the housing 41 away from the assembling port 43, the connector 46 is disposed on the side 451 of the circuit board 45 and electrically connected to the power supply board 47, so that the circuit board 45 can be powered by the power supply board 47, each connection portion 42 is located between the power supply board 47 and the side 451 of each circuit board 45, and a space is provided between the side 451 and the connection portion 42.

In some embodiments, the number of the buffering elements 1 may be one or more and is disposed between the side 451 of the circuit board 45 and the connecting portion 42, as shown in fig. 9 to 12, in the present embodiment, the number of the buffering elements 1 is multiple, and the first sidewall 11 of the annular elastic body 10 of each buffering element 1 contacts the side 451 of each circuit board 45, and the second sidewall 12 is fixed to the connecting portion 42. Therefore, when the electronic device 40 is acted by an external force (for example, the electronic device 40 is impacted or vibrated), the buffer element 1 is blocked between the connecting portion 42 and the circuit board 45, so that the circuit board 45 can be prevented from directly impacting the connecting portion 42, the buffer element 1 can generate a damping effect to reduce an acceleration value of the circuit board 45 when rebounding, and the circuit board 45 is prevented from rebounding to impact other elements in the housing 41 to cause damage or deformation of the circuit board 45 or other elements.

For example, please refer to fig. 2, fig. 12 and fig. 13, wherein fig. 13 is a schematic impact diagram of fig. 12. Before shipment, the electronic device 40 mostly needs to be subjected to an impact or vibration test to ensure the reliability of the product, during the impact or vibration process, since the first sidewall 11 of the buffer element 1 contacts the side 451 of the circuit board 45, when the circuit board 45 in the electronic device 40 is forced to generate acceleration, the side 451 of the circuit board 45 will correspond to the first sidewall 11 of the buffer element 1 (as shown by arrow L in fig. 13), so that the first sidewall 11 and each first column 20 move towards the second inner surface 121 to compress the annular elastic body 10, during the movement process, the contact portions of the first side 22 of each first column 20 and the second side 32 of each second column 30 will rub against each other to generate a damping effect, and besides, each sidewall (the first sidewall 11, the third sidewall 13 and the fourth sidewall 14) of the annular elastic body 10 can be simultaneously stressed to generate deformation to enhance the damping effect, the impact force of the circuit board 45 is effectively absorbed, and the rebound reaction force is greatly reduced, so that the rebound acceleration value of the circuit board 45 is reduced, and the circuit board 45 is prevented from rebounding to impact other elements in the casing 41 to cause damage or deformation of the circuit board 45 or other elements.

In summary, as shown in fig. 10 and fig. 14, wherein fig. 14 is a partial enlargement of the area C of fig. 10, in some embodiments, each circuit board 45 may include a first stopper 452, the housing 41 includes a second stopper 411, the second stopper 411 is located between the first stopper 452 and the assembly opening 43, and the first stopper 452 abuts against the second stopper 411, so that each circuit board 45 is limited and each circuit board 45 is prevented from being separated from the assembly opening 43. As mentioned above, the buffering element 1 can effectively absorb the impact force of the circuit board 45 and greatly reduce the rebound reaction force, so as to reduce the rebound acceleration value of the circuit board 45, and therefore, the impact force of the first stopper 452 of the circuit board 45 hitting the second stopper 411 of the housing 41 can be greatly reduced, and the first stopper 452 and the second stopper 411 are prevented from being damaged or deformed.

In some embodiments, as shown in fig. 10 and 14, the first stopper 452 of each circuit board 45 can be a lever and is disposed on the opposite side of the side 451, and the first stopper 452 includes a buckling portion 453. The second stopper 411 of the housing 41 is a baffle and disposed at the assembling opening 43, and the second stopper 411 includes a slot 412, wherein the first stopper 452 can be shifted to swing relative to the second stopper 411, so that the buckling portion 453 buckles or disengages from the slot 412. For example, after the circuit board 45 is inserted into the corresponding slot 44 through the assembling opening 43, the first stopper 452 can be shifted to swing, so that the fastening portion 453 is fastened in the fastening slot 412, and the first stopper 452 and the second stopper 411 are abutted against each other for limiting, thereby preventing the circuit board 45 from coming off. When the circuit board 45 is to be detached from the housing 41, the first stopper 452 can be pulled to swing, so that the fastening portion 453 is separated from the fastening groove 412, and the circuit board 45 can be taken out from the assembling opening 43.

In some embodiments, a buffering element 1 may be disposed between each side of each circuit board 45 and the housing 41, so that when the circuit boards 45 are stressed to generate multiple axial accelerations, a buffering effect can be obtained by the buffering element 1.

In some embodiments, the annular elastic body 10 of each buffering element 1 can also be fixed to the connecting portion 42 through the first sidewall 11, and the second sidewall 12 contacts the side 451 of each circuit board 45, so that the second sidewall 12 can bear the impact of the circuit board 45.

Although the present invention has been described in connection with the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art should understand that they can make various changes and modifications without departing from the spirit of the present invention, therefore, the scope of the present invention should be determined by the appended claims.

Claims

1. A cushioning element, comprising:

an annular elastomer including a first sidewall and a second sidewall opposite to each other, the first sidewall including a first inner surface, the second sidewall including a second inner surface;

a plurality of first columns arranged on the first inner surface and extending towards the second inner surface, wherein each first column comprises a first extending end and a first side surface, and a first distance is formed between the first extending end and the second inner surface; and

the second columns are arranged on the second inner surface and extend towards the first inner surface, each second column comprises a second extending end and a second side surface, a second distance is formed between the second extending end and the first inner surface, and at least one part of the second side surface is in contact with the first side surface.

2. The cushioning element of claim 1, wherein the first pillars are arranged in a row, the second pillars are arranged in a row, and the first pillars and the second pillars alternate with each other.

3. The cushioning element of claim 1, wherein the annular resilient body includes a first open side and a second open side opposite to each other, each of the first posts is elongated and extends from the first open side to the second open side.

4. The cushioning element of claim 1, wherein the annular resilient body includes a third sidewall and a fourth sidewall opposite to each other, the third sidewall and the fourth sidewall being connected between the first sidewall and the second sidewall, two of the second pillars being further connected to the third sidewall and the fourth sidewall, respectively.

5. The cushioning element of claim 4, wherein each second post connected to the third sidewall and the fourth sidewall further has a notch.

6. The cushioning element of claim 1, wherein the first pillars are arranged in a two-dimensional array, the second pillars are arranged in a two-dimensional array, and the first pillars and the second pillars alternate with each other.

7. The cushioning element of claim 1, wherein the first side of each of the first pillars further has a plurality of protrusions thereon, the second side of each of the second pillars further has a plurality of recesses thereon, and the protrusions are respectively detachably disposed in the recesses.

8. The impact-attenuating element of claim 7, wherein each of the protrusions includes a first slope and a second slope, the first slope being adjacent to the first inner surface relative to the second slope, and the slope of the first slope being greater than the slope of the second slope.

9. An electronic device, comprising:

a case having a connection part therein;

the circuit board is assembled in the shell and comprises a side edge adjacent to the connecting part; and

the buffer element is arranged between the side edge of the circuit board and the connecting part, and comprises:

the annular elastic body comprises a first side wall and a second side wall which are opposite to each other, the first side wall comprises a first inner surface, the second side wall comprises a second inner surface, the first side wall is in contact with the side edge, and the second side wall is fixed on the connecting part;

10. The electronic device of claim 9, wherein the housing includes an assembly opening and a slot, the slot is located between the connecting portion and the assembly opening, and the circuit board is inserted into the slot through the assembly opening.

11. The electronic device of claim 10, wherein the circuit board comprises a first stop member, the housing comprises a second stop member, the second stop member is located between the first stop member and the assembly opening, and the first stop member abuts against the second stop member.

12. The electronic device of claim 9, wherein the first pillars are arranged in a row, the second pillars are arranged in a row, and the first pillars and the second pillars are alternately arranged.

13. The electronic device according to claim 9, wherein the ring-shaped elastic body includes a first opening side and a second opening side opposite to each other, each of the first pillars is elongated and extends from the first opening side to the second opening side.

14. The electronic device of claim 9, wherein the annular elastic body comprises a third sidewall and a fourth sidewall opposite to each other, the third sidewall and the fourth sidewall are connected between the first sidewall and the second sidewall, and two of the second pillars are further connected to the third sidewall and the fourth sidewall, respectively.

15. The electronic device of claim 14, wherein each of the second pillars connected to the third sidewall and the fourth sidewall further has a notch.

16. The electronic device of claim 9, wherein the first pillars are arranged in a two-dimensional array, the second pillars are arranged in a two-dimensional array, and the first pillars and the second pillars alternate with each other.

17. The electronic device of claim 9, wherein the first side of each of the first pillars further has a plurality of protrusions thereon, the second side of each of the second pillars further has a plurality of recesses thereon, and the protrusions are respectively detachably disposed in the recesses.

18. The electronic device of claim 17, wherein each of the protrusions comprises a first slope and a second slope, the first slope is adjacent to the first inner surface relative to the second slope, and the slope of the first slope is greater than the slope of the second slope.